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https://github.com/k3s-io/k3s/releases/tag/v1.32.11%2Bk3s3 K3s v1.34 Upgrade Warning This warning targets users who perform upgrades by adding new nodes to the cluster, and removing old ones. If your etcd cluster membership is and has been consistent across versions, you should NOT be affected by this issue. K3s v1.34 and higher include etcd 3.6. Maintainers of the etcd project have indicated that there no safe path from etcd 3.5 to 3.6 except by upgrading to v3.5.26 first. In mid December, the project released an announcement indicating that there is NO safe path from etcd 3.5 to 3.6 except by upgrading to v3.5.26 first. Failure to do so can cause the cluster to report “zombie members” (etcd nodes that were removed from the cluster some time ago) re-appearing and joining database consensus, ultimately causing the cluster to lose quorum. This updated blog post contradicts previous announcements on this topic, which indicated that it was safe to upgrade from v3.5.20+ as long as nodes had been restarted at least once, to reconcile membership lists across internal storage layers. The January releases of K3s v1.32 and v1.33 will include etcd v3.5.26. All users should plan on upgrading to this patch release, prior to upgrading to v1.34 and v1.35.
Nixpkgs is a collection of over 120,000 software packages that can be installed with the Nix package manager. It also implements NixOS, a purely-functional Linux distribution.
Manuals
- NixOS Manual - how to install, configure, and maintain a purely-functional Linux distribution
- Nixpkgs Manual - contributing to Nixpkgs and using programming-language-specific Nix expressions
- Nix Package Manager Manual - how to write Nix expressions (programs), and how to use Nix command line tools
Community
- Discourse Forum
- Matrix Chat
- Official wiki
- Community-maintained list of ways to get in touch (Discord, Telegram, IRC, etc.)
Other Project Repositories
The sources of all official Nix-related projects are in the NixOS organization on GitHub. Here are some of the main ones:
- Nix - the purely functional package manager
- NixOps - the tool to remotely deploy NixOS machines
- nixos-hardware - NixOS profiles to optimize settings for different hardware
- Nix RFCs - the formal process for making substantial changes to the community
- NixOS homepage - the NixOS.org website
- hydra - our continuous integration system
- NixOS Branding - NixOS branding
Continuous Integration and Distribution
Nixpkgs and NixOS are built and tested by our continuous integration system, Hydra.
- Continuous package builds for unstable/master
- Continuous package builds for the NixOS 25.11 release
- Tests for unstable/master
- Tests for the NixOS 25.11 release
Artifacts successfully built with Hydra are published to cache at https://cache.nixos.org/. When successful build and test criteria are met, the Nixpkgs expressions are distributed via Nix channels.
Contributing
Nixpkgs is among the most active projects on GitHub. While thousands of open issues and pull requests might seem like a lot at first, it helps to consider it in the context of the scope of the project. Nixpkgs describes how to build tens of thousands of pieces of software and implements a Linux distribution. The GitHub Insights page gives a sense of the project activity.
Community contributions are always welcome through GitHub Issues and Pull Requests.
For more information about contributing to the project, please visit the contributing page.
Donations
The infrastructure for NixOS and related projects is maintained by a nonprofit organization, the NixOS Foundation. To ensure the continuity and expansion of the NixOS infrastructure, we are looking for donations to our organization.
You can donate to the NixOS Foundation through SEPA bank transfers or by using Open Collective:
License
Nixpkgs is licensed under the MIT License.
Note
MIT license does not apply to the packages built by Nixpkgs, merely to the files in this repository (the Nix expressions, build scripts, NixOS modules, etc.). It also might not apply to patches included in Nixpkgs, which may be derivative works of the packages to which they apply. The aforementioned artifacts are all covered by the licenses of the respective packages.